:root {
    --revcalc-bg: #f6f7f9;
    --revcalc-panel: #ffffff;
    --revcalc-panel-subtle: #fbfcfd;
    --revcalc-text: #172033;
    --revcalc-muted: #647084;
    --revcalc-label: #314057;
    --revcalc-border: #dce2ea;
    --revcalc-soft: #eef3f8;
    --revcalc-field-bg: #ffffff;
    --revcalc-header-bg: linear-gradient(135deg, #f7fbfc 0%, #edf8f7 100%);
    --revcalc-featured-bg: #f2fbfa;
    --revcalc-primary: #176b87;
    --revcalc-primary-dark: #0e536b;
    --revcalc-eyebrow-color: #176b87;
    --revcalc-button-hover-bg: #0e536b;
    --revcalc-button-hover-text: #ffffff;
    --revcalc-amount-color: #06142d;
    --revcalc-subheading-color: #004a5a;
    --revcalc-accent: #18a999;
    --revcalc-danger: #b42318;
    --revcalc-warning: #b7791f;
    --revcalc-radius: 8px;
    --revcalc-shadow: 0 16px 42px rgba(23, 32, 51, 0.1);
    --revcalc-font-size: 14px;
}

.revcalc-root.is-dark {
    --revcalc-bg: #101418;
    --revcalc-panel: #171d24;
    --revcalc-panel-subtle: #1f2630;
    --revcalc-text: #eef3f7;
    --revcalc-muted: #a7b2c0;
    --revcalc-label: #d8e1ea;
    --revcalc-border: #334050;
    --revcalc-soft: #26313d;
    --revcalc-field-bg: #11171d;
    --revcalc-header-bg: linear-gradient(135deg, #171d24 0%, #1d2a30 100%);
    --revcalc-featured-bg: #132824;
    --revcalc-primary: #5cc8df;
    --revcalc-primary-dark: #8edbea;
    --revcalc-eyebrow-color: #5cc8df;
    --revcalc-button-hover-bg: #8edbea;
    --revcalc-button-hover-text: #101418;
    --revcalc-amount-color: #eef3f7;
    --revcalc-subheading-color: #8edbea;
    --revcalc-accent: #4bd6c4;
    --revcalc-danger: #f48b82;
    --revcalc-warning: #f2c879;
    --revcalc-shadow: 0 18px 46px rgba(0, 0, 0, 0.32);
    display: block;
    background: var(--revcalc-bg);
}

.revcalc-standalone {
    min-height: 100vh;
    padding: 32px 16px;
    background: var(--revcalc-bg);
    box-sizing: border-box;
}

.revcalc-standalone:has(.revcalc-root.is-dark) {
    background: #101418;
}

.revcalc-app,
.revcalc-app * {
    box-sizing: border-box;
}

.revcalc-app {
    width: min(1440px, 100%);
    margin: 0 auto;
    color: var(--revcalc-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: var(--revcalc-font-size);
    line-height: 1.45;
}

.revcalc-shell {
    background: var(--revcalc-panel);
    border: 1px solid var(--revcalc-border);
    border-radius: var(--revcalc-radius);
    box-shadow: var(--revcalc-shadow);
    overflow: hidden;
}

.revcalc-header {
    display: grid;
    gap: 12px;
    padding: 18px;
    background: var(--revcalc-header-bg);
    border-bottom: 1px solid var(--revcalc-border);
}

.revcalc-eyebrow {
    margin: 0;
    color: var(--revcalc-eyebrow-color);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.revcalc-title-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.revcalc-title {
    margin: 0;
    font-size: clamp(1.7rem, 3.4vw, 2.7rem);
    line-height: 1.05;
    letter-spacing: 0;
}

.revcalc-header-actions {
    display: none;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.revcalc-subtitle {
    max-width: 720px;
    margin: 0;
    color: var(--revcalc-muted);
}

.revcalc-tabs {
    display: flex;
    gap: 8px;
    padding: 10px 16px;
    overflow-x: auto;
    border-bottom: 1px solid var(--revcalc-border);
    background: var(--revcalc-panel-subtle);
}

.revcalc-tab {
    min-width: max-content;
    border: 1px solid var(--revcalc-border);
    border-radius: 999px;
    padding: 8px 14px;
    background: var(--revcalc-field-bg);
    color: var(--revcalc-muted);
    font: inherit;
    font-weight: 700;
}

.revcalc-tab.is-active {
    border-color: var(--revcalc-eyebrow-color) !important;
    background: var(--revcalc-eyebrow-color) !important;
    color: #ffffff !important;
}

.revcalc-app .revcalc-tab:not(:disabled):hover {
    border-color: var(--revcalc-button-hover-bg) !important;
    background: var(--revcalc-button-hover-bg) !important;
    color: var(--revcalc-button-hover-text) !important;
}

.revcalc-tab.is-disabled {
    display: none;
    opacity: 0.58;
    cursor: not-allowed;
}

.revcalc-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 16px;
}

.revcalc-section {
    display: grid;
    gap: 12px;
    margin: 0;
}

.revcalc-section-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
}

.revcalc-section h2,
.revcalc-summary h2 {
    margin: 0;
    color: var(--revcalc-subheading-color);
    font-size: 1.15rem;
}

.revcalc-section p {
    margin: 4px 0 0;
    color: var(--revcalc-muted);
}

.revcalc-package-grid {
    display: grid;
    grid-template-columns: minmax(160px, 1fr) minmax(115px, 145px) minmax(190px, 220px) minmax(120px, 150px);
    gap: 10px;
    align-items: end;
}

.revcalc-field {
    display: grid;
    gap: 5px;
}

.revcalc-field label,
.revcalc-toggle-label {
    color: var(--revcalc-label);
    font-size: 0.9rem;
    font-weight: 800;
}

.revcalc-field input,
.revcalc-field select,
.revcalc-scenario-select {
    width: 100%;
    min-height: 36px;
    border: 1px solid var(--revcalc-border);
    border-radius: var(--revcalc-radius);
    padding: 6px 8px;
    background: var(--revcalc-field-bg);
    color: var(--revcalc-text);
    font: inherit;
}

.revcalc-field input:focus,
.revcalc-field select:focus,
.revcalc-scenario-select:focus {
    border-color: var(--revcalc-primary);
    box-shadow: 0 0 0 3px rgba(23, 107, 135, 0.15);
    outline: none;
}

.revcalc-field input[type="number"] {
    appearance: textfield;
}

.revcalc-field input[type="number"]::-webkit-inner-spin-button,
.revcalc-field input[type="number"]::-webkit-outer-spin-button {
    margin: 0;
    appearance: none;
}

.revcalc-stepper {
    display: grid;
    grid-template-columns: 34px minmax(46px, 1fr) 34px;
    gap: 5px;
    align-items: stretch;
}

.revcalc-stepper input {
    min-height: 36px;
    text-align: center;
    font-weight: 900;
}

.revcalc-stepper-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    border: 1px solid var(--revcalc-border);
    border-radius: var(--revcalc-radius);
    background: var(--revcalc-soft);
    color: var(--revcalc-text);
    font: inherit;
    font-weight: 900;
    cursor: pointer;
}

.revcalc-app .revcalc-stepper-button:hover {
    border-color: var(--revcalc-button-hover-bg) !important;
    background: var(--revcalc-button-hover-bg) !important;
    color: var(--revcalc-button-hover-text) !important;
}

.revcalc-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 36px;
    border: 1px solid var(--revcalc-border);
    border-radius: var(--revcalc-radius);
    padding: 6px 10px;
    background: var(--revcalc-field-bg);
    color: var(--revcalc-text);
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.revcalc-app .revcalc-button:hover {
    border-color: var(--revcalc-button-hover-bg) !important;
    background: var(--revcalc-button-hover-bg) !important;
    color: var(--revcalc-button-hover-text) !important;
}

.revcalc-button-primary {
    border-color: var(--revcalc-primary);
    background: var(--revcalc-primary);
    color: #ffffff;
}

.revcalc-app .revcalc-button-primary:hover {
    border-color: var(--revcalc-button-hover-bg) !important;
    background: var(--revcalc-button-hover-bg) !important;
    color: var(--revcalc-button-hover-text) !important;
}

.revcalc-button-danger {
    border-color: rgba(180, 35, 24, 0.28);
    color: var(--revcalc-danger);
}

.revcalc-theme-toggle {
    min-width: 94px;
}

.revcalc-theme-icon {
    position: relative;
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-radius: 999px;
}

.revcalc-theme-icon::after {
    position: absolute;
    top: -2px;
    right: -4px;
    width: 12px;
    height: 12px;
    border-radius: 999px;
    background: var(--revcalc-field-bg);
    content: "";
}

.revcalc-root.is-dark .revcalc-theme-icon::after {
    opacity: 0;
}

.revcalc-icon-button {
    width: 36px;
    min-width: 36px;
    min-height: 36px;
    padding: 0;
    font-size: 1rem;
}

.revcalc-income-list {
    display: grid;
    gap: 10px;
}

.revcalc-income-row {
    display: grid;
    grid-template-columns: minmax(115px, 1fr) minmax(130px, 1fr) 82px 124px 72px 130px 36px;
    gap: 6px;
    align-items: end;
    padding: 8px;
    border: 1px solid var(--revcalc-border);
    border-radius: var(--revcalc-radius);
    background: var(--revcalc-panel-subtle);
}

.revcalc-row-total {
    display: grid;
    gap: 5px;
}

.revcalc-row-total span:first-child {
    color: var(--revcalc-label);
    font-size: 0.9rem;
    font-weight: 800;
}

.revcalc-row-total strong {
    display: flex;
    align-items: center;
    min-height: 36px;
    color: var(--revcalc-amount-color);
    font-size: 1.12rem;
    font-weight: 900;
    line-height: 1.05;
    white-space: nowrap;
}

.revcalc-income-month-field {
    min-width: 72px;
}

.revcalc-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.revcalc-summary-card {
    border: 1px solid var(--revcalc-border);
    border-radius: var(--revcalc-radius);
    padding: 10px;
    background: var(--revcalc-panel);
}

.revcalc-summary-card.is-featured {
    border-color: rgba(23, 107, 135, 0.35);
    background: var(--revcalc-featured-bg);
}

.revcalc-summary-label {
    margin: 0 0 6px;
    color: var(--revcalc-muted);
    font-size: 0.88rem;
    font-weight: 800;
}

.revcalc-summary-value {
    margin: 0;
    color: var(--revcalc-amount-color);
    font-size: clamp(1.35rem, 2vw, 1.8rem);
    line-height: 1.08;
    font-weight: 900;
}

.revcalc-summary-note {
    margin: 7px 0 0;
    color: var(--revcalc-muted);
    font-size: 0.9rem;
}

.revcalc-scenarios {
    display: grid;
    grid-template-columns: minmax(180px, 0.8fr) minmax(190px, 1fr) minmax(220px, 1fr) auto;
    align-items: end;
    gap: 12px;
    padding: 12px 18px;
    border: 1px solid var(--revcalc-border);
    border-width: 0 0 1px;
    border-radius: 0;
    background: var(--revcalc-panel-subtle);
}

.revcalc-toast {
    position: fixed;
    z-index: 99999;
    top: 50%;
    left: 50%;
    max-width: min(420px, calc(100vw - 32px));
    padding: 14px 18px;
    border: 1px solid var(--revcalc-border);
    border-radius: var(--revcalc-radius);
    background: var(--revcalc-panel);
    box-shadow: var(--revcalc-shadow);
    color: var(--revcalc-text);
    font-weight: 800;
    line-height: 1.35;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -50%) scale(0.96);
    transition: opacity 160ms ease, transform 160ms ease;
}

.revcalc-toast.is-visible {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.revcalc-scenario-heading {
    align-self: center;
}

.revcalc-scenario-heading h2 {
    margin: 0;
    color: var(--revcalc-subheading-color);
    font-size: 1rem;
}

.revcalc-scenario-heading p {
    margin: 3px 0 0;
    color: var(--revcalc-muted);
    font-size: 0.86rem;
}

.revcalc-scenario-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.revcalc-empty-note {
    margin: 0;
    padding: 14px;
    border: 1px dashed var(--revcalc-border);
    border-radius: var(--revcalc-radius);
    color: var(--revcalc-muted);
    background: var(--revcalc-field-bg);
}

@media (max-width: 1320px) {
    .revcalc-income-row {
        grid-template-columns: minmax(115px, 1fr) minmax(130px, 1fr) 82px 124px 72px 130px 36px;
    }
}

@media (max-width: 1120px) {
    .revcalc-income-row {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 1180px) {
    .revcalc-package-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 980px) {
    .revcalc-scenarios {
        grid-template-columns: 1fr 1fr;
    }

    .revcalc-scenario-heading {
        grid-column: 1 / -1;
    }

    .revcalc-income-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .revcalc-summary {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .revcalc-standalone {
        padding: 0;
    }

    .revcalc-shell {
        border-radius: 0;
        border-left: 0;
        border-right: 0;
    }

    .revcalc-header,
    .revcalc-content {
        padding: 14px;
    }

    .revcalc-package-grid,
    .revcalc-income-row,
    .revcalc-scenario-actions,
    .revcalc-scenarios {
        grid-template-columns: 1fr;
    }

    .revcalc-section-header {
        align-items: stretch;
        flex-direction: column;
    }
}